| 香溪河库湾春季pCO2与浮游植物生物量的关系 |
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| 引用本文： | 袁希功,黄文敏,毕永红,胡征宇,赵玮,朱孔贤.香溪河库湾春季pCO2与浮游植物生物量的关系[J].环境科学,2013,34(5):1754-1760. |
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| 作者姓名： | 袁希功 黄文敏 毕永红 胡征宇 赵玮 朱孔贤 |
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| 作者单位： | 1. 中国科学院水生生物研究所淡水生态与生物技术国家重点实验室,武汉430072;中国科学院大学,北京 100049
2. 中国科学院水生生物研究所淡水生态与生物技术国家重点实验室,武汉,430072 |
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| 基金项目： | 国家重点基础研究发展规划(973)项目(2010CB955904); 国家自然科学基金项目(31100340) |
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| 摘 要： | 测定了春季香溪河库湾的水温(WT)、pH、HCO3-浓度、溶氧(DO)及叶绿素a(Chl-a)浓度等参数.根据化学平衡和亨利定律计算二氧化碳分压(pCO2),以薄层扩散模型计算碳通量.结果表明,香溪河库湾春季表层水体pCO2在8.34～168.70μatm间波动,平均为49.01μatm.空间上,pCO2自上游到河口呈明显上升趋势,Chl-a浓度则逐渐下降.时间上,昼夜pCO2在74.43～168.70μatm间波动,平均为117.92μatm,Chl-a浓度在2.22～4.55 mg.m-3之间,平均为3.04 mg.m-3.香溪河库湾春季表层水体pCO2与Chl-a浓度之间存在极显著的负相关关系(r=-0.844,P<0.01),浮游植物光合作用是pCO2的主要影响因子.香溪河库湾春季是CO2的汇,CO2吸收速率为-35.17 mmol.(m2.d)-1.
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| 关 键 词： | 三峡水库 香溪河库湾 二氧化碳分压 叶绿素a 碳通量 |
| 收稿时间： | 2012/8/13 0:00:00 |
| 修稿时间： | 2012/10/15 0:00:00 |
Relationship Between pCO2 and Algal Biomass in Xiangxi Bay in Spring |
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| YUAN Xi-gong,HUANG Wen-min,BI Yong-hong,HU Zheng-yu,ZHAO Wei and ZHU Kong-xian.Relationship Between pCO2 and Algal Biomass in Xiangxi Bay in Spring[J].Chinese Journal of Environmental Science,2013,34(5):1754-1760. |
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| Authors: | YUAN Xi-gong HUANG Wen-min BI Yong-hong HU Zheng-yu ZHAO Wei and ZHU Kong-xian |
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| Institution: | State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China;University of Chinese Academy of Sciences, Beijing 100049, China;State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China;State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China;State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China;State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China;University of Chinese Academy of Sciences, Beijing 100049, China;State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China;University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | |
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| Keywords: | Three Gorges Reservoir Xiangxi Bay pCO2 Chl-a CO2 flux |
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